Full JVM crash when using JFXPanel and WebView: URLLoader.twkDidFinishLoading(J)V+0

Currently using JavaFX 2.1 official under Java 1.6.0_29 (32 bit).

I believe this problem is caused by the web page AJAX calls or something causing updates. The causes do not appear when the web pages are static.

Stack: [0x31710000,0x31760000], sp=0x3175f184, free space=316k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)

[error occurred during error reporting (printing native stack), id 0xc0000005]

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j com.sun.webpane.webkit.network.URLLoader.twkDidFinishLoading(J)V+0
j com.sun.webpane.webkit.network.URLLoader.access$1300(J)V+1
j com.sun.webpane.webkit.network.URLLoader$6.run()V+17
v ~StubRoutines::call_stub
j com.sun.glass.ui.win.WinApplication._runLoop([Ljava/lang/String;Lcom/sun/glass/ui/Launchable;)V+0
j com.sun.glass.ui.win.WinApplication.access$100(Lcom/sun/glass/ui/win/WinApplication;[Ljava/lang/String;Lcom/sun/glass/ui/Launchable;)V+3
j com.sun.glass.ui.win.WinApplication$2$1.run()V+32
j java.lang.Thread.run()V+11
v ~StubRoutines::call_stub


2 full stack files attached below.